Forward Model and Sensitivity Analysis for Limb-Scattered Radiation of Mesospheric OH Radicals Emission in Ultraviolet Band
FANG Xue-jing1,2,3, XIONG Wei1,3*, SHI Hai-liang1,3, LUO Hai-yan1,3, CHEN Di-hu1,3
1. Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
2. University of Science and Technology of China, Hefei 230026, China
3. Key Laboratory of Optical Calibration and Characterization of Chinese Academy of Sciences, Hefei 230031, China
Abstract：Hydroxyl, one of the principal oxidants in the atmosphere, determines the density of ozone and other greenhouse gases even the change of climate. In order to achieve high resolution vertical profiles of OH radical in mesosphere, an accurate forward model should be built up for its retrieval. In this paper，this forward model simulates limb-scattered signal including OH solar resonance fluorescence around 309 nm. We calculate OH band rotationalemission rate factor g based on molecular spectroscopy theory, and combine it with OH slant column calculated by SCIATRAN to synthesize OH fluorescence emission spectra. By superimposing atmospheric background signal and do a convolution with instrument line shape function, we could obtain a simulated spectra containing OH concentration information.These results are in good agreement with previous measurements by MAHRSI (Middle Atmosphere High-Resolution Spectrograph Investigation) and SHIMMER (Spatial Heterodyne Imager for Mesospheric Radicals). Then we analyze several factors that may influence the forward model. By modifying these parameters, forward model could be more accurate and closer to the actual radiative transfer process in the future.
基金资助: National Natural Science Foundation of China(11703061), Hefei Institutes of Physical Science Present Foundation (YZJJ201607), Laboratory Innovation Foundation (CXJJ-17S002)
通讯作者:
熊 伟
E-mail: frank@aiofm.ac.cn
作者简介: FANG Xue-jing，(1991—), female, PhD, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, CAS
e-mail：fxj126@mail.ustc.edu.cn
引用本文:
方雪静，熊 伟，施海亮，罗海燕，陈迪虎. 中高层OH自由基在紫外波段的临边散射辐射正演模拟与敏感性分析[J]. 光谱学与光谱分析, 2018, 38(10): 3278-3285.
FANG Xue-jing, XIONG Wei, SHI Hai-liang, LUO Hai-yan, CHEN Di-hu. Forward Model and Sensitivity Analysis for Limb-Scattered Radiation of Mesospheric OH Radicals Emission in Ultraviolet Band. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(10): 3278-3285.
[1] Conway R R, Stevens M H, Brown C M, et al. Journal of Geophysical Research, 1999, 104(D13)：16327.
[2] Summers M E, et al. Geophysical Research Letters, 2001, 28(18)：3601.
[3] Englert C R, Stevens M H, et al. Geophysical Research Letters, 2008, 35：L19813.
[4] Zhao W, Wysocki G, et al. Optics Express, 2011，19：2493.
[5] Englert C R, Stevens M H, et al. Journal of Geophysical Research, 2010, 115：D20306.
[6] Fennelly J A, Torr D G, Torr M R. Journal of Geophysical Research, 1989, 94：5183.
[7] Kaiser J W. Atmospheric Parameter Retrieval from UV-Vis-NIR Limb Scattering Measurements. Bremen: University of Bremen, 2001.
[8] Rozanov V V, Buchwitz M, et al. Advances in Space Research, 2002, 29(11)：1831.
[9] Rozanov A, Rozanov V, Buchwitz M, et al. Advances in Space Research, 2005, 36：1015.
[10] Rozanov V V，Rozanov A V. User’s Guide for the Software Package SCIATRAN-Version 3.2. Institute of Remote Sensing, University of Bremen, Germany, 2013.
[11] Herzberg G. Spectra of Diatomic Molecules. Van Norstrand Reinhold, New York, 1950.
[12] Anderson J G. Journal of Geophysical Research, 1971a, 76：4634.
[13] Stevens M H, Conway R R. Journal of Geophysical Research, 1999, 104：16369.
[14] HITRAN on the web-http://hitran.iao.ru.
[15] Goldman A, Gills J R. Journal of Quantitative Spectroscopy Radiative Transfer, 1981, 25：111.
[16] Cageao R P, Ha Y L, et al. Journal of Quantitative Spectroscopy Radiative Transfer, 1997, 57：703.
[17] National Solar Observatory-http://vso.nso.edu.
